ABSTRACT
Good plans shape good decisions. That’s why good planning helps to make elusive dreams come true.
—Lester R. Bittel
Many people built a prototype of the wrong thing. For instance, they invested a lot of time and
resources making a system prototype when only a subsystem prototype was necessary, or built
a prototype when a model or simulation would have resulted in the same conclusion. Of course,
in prototyping activities, there are always risks involved. However, spending 90% of the
resources to address a 10% risk area is not a good strategy. Modeling and virtual prototyping
are powerful tools in prototyping, especially in the early stage. A model may not be able to
come up with the exact solution to a problem, however, it may be able to provide answers to
. Which approaches will work?
